body,div,ul,li{
 margin:0 auto;
 padding:0;
}
body{
 font:12px "宋体";
 text-align:center;
}
a:link{
 color:#00F;
 text-decoration:none;
}

a:visited {
 color: #00F;
 text-decoration:none;
}

a:hover {
 color: #c00;
 text-decoration:underline;
}

ul{
 list-style:none;
}

.main{
 clear:both;
 padding:8px;
 text-align:center;
}

#tabs {
 height: 600px;
 width: 1100px;
 border: 1px solid #cbcbcb;
 background: #ECF1F8
}

.menu{
 width: 850px;
 float:left ;
}

.menu li{
 display:block;
 float: left;
 padding: 4px 0;
 width:100px;
 text-align: center;
 cursor:pointer;
 background: #CFDDED;
 border: thin;
 border-color:white;
 border-style: solid;
}

.menu li.hover{
 background: #ECF1F8 ;
}

#main ul{
 display: none;
}

#main ul.block{
 display: block;
}

table{border-collapse:collapse;}
td{border:1px solid #CCC;}
thead{background: #E8E8E8; }